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Official National Weather Service (NWS) point forecast and real-time wind conditions for Big Stone Lake (South Dakota). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 76°F · Low 59°F
Peak gusts: 8 mph · Lake surface chop expected
Humidity: 48% · Barometer: 30.02 inHg
USGS water monitoring available for Big Stone Lake.
Excellent for boating (98/100), from 4 available inputs. Supporting this: Wind 2 mph from the south-southeast. Gusts to 6 mph. Not available from a verified source for this lake: visibility and conditions, verified water access. Confidence is moderate (84%) because some inputs are unavailable or older than ideal.
Good for fishing (86/100), from 5 available inputs. Supporting this: Wind 2 mph from the south-southeast. 0% chance of precipitation. Not available from a verified source for this lake: pressure trend, water temperature. Confidence is moderate (74%) because some inputs are unavailable or older than ideal.
Excellent for kayaking (98/100), from 5 available inputs. Supporting this: Wind 2 mph from the south-southeast. Gusts to 6 mph. Confidence is high (90%).
Water temperature is not available from a verified source for this lake. No swimming score is shown without it. Supporting this: No active official alerts for this lake. 0% chance of precipitation. Not available from a verified source for this lake: water temperature.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 11 PM | 69°F | 2 mph | S | ⚡ 6 mph | 0% | Clear |
| 12 AM | 68°F | 1 mph | S | ⚡ 2 mph | 0% | Clear |
| 1 AM | 66°F | 0 mph | — | — | 1% | Clear |
| 2 AM | 66°F | 1 mph | SE | ⚡ 2 mph | 1% | Clear |
| 3 AM | 65°F | 3 mph | SE | ⚡ 7 mph | 1% | Clear |
| 4 AM | 64°F | 3 mph | SE | ⚡ 6 mph | 1% | Mostly Clear |
| 5 AM | 62°F | 2 mph | E | ⚡ 7 mph | 1% | Mostly Clear |
| 6 AM | 61°F | 3 mph | N | ⚡ 7 mph | 1% | Sunny |
| 7 AM | 59°F | 3 mph | N | ⚡ 7 mph | 1% | Mostly Sunny |
| 8 AM | 59°F | 3 mph | N | ⚡ 8 mph | 1% | Mostly Sunny |
| 9 AM | 61°F | 5 mph | N | ⚡ 10 mph | 1% | Partly Sunny |
| 10 AM | 64°F | 6 mph | N | ⚡ 12 mph | 1% | Partly Sunny |
| 11 AM | 67°F | 6 mph | N | ⚡ 12 mph | 1% | Partly Sunny |
| 12 PM | 70°F | 7 mph | N | ⚡ 13 mph | 1% | Partly Sunny |
| 1 PM | 73°F | 7 mph | N | ⚡ 13 mph | 1% | Partly Sunny |
| 2 PM | 75°F | 7 mph | N | ⚡ 14 mph | 2% | Mostly Cloudy |
| 3 PM | 75°F | 8 mph | N | ⚡ 15 mph | 2% | Mostly Cloudy |
| 4 PM | 76°F | 9 mph | N | ⚡ 16 mph | 2% | Mostly Cloudy |
| 5 PM | 75°F | 9 mph | N | ⚡ 17 mph | 0% | Mostly Cloudy |
| 6 PM | 73°F | 12 mph | N | ⚡ 18 mph | 2% | Mostly Cloudy |
| 7 PM | 71°F | 12 mph | N | ⚡ 21 mph | 1% | Mostly Cloudy |
| 8 PM | 65°F | 13 mph | N | ⚡ 21 mph | 1% | Cloudy |
| 9 PM | 62°F | 12 mph | N | ⚡ 21 mph | 0% | Mostly Cloudy |
| 10 PM | 60°F | 12 mph | N | ⚡ 21 mph | 0% | Mostly Cloudy |
Mirror-like to gentle rippled water. Optimal conditions for paddleboarding, kayaking, swimming, and beginner water skiing or wakeboarding.
Pleasant breeze with small wavelets. Great for sailing, pleasure cruising, pontoon boats, and trolling for trout and bass.
Moderate waves with whitecaps likely. Requires skilled boat handling; kayaks, canoes, and stand-up paddleboards should stay close to sheltered bays.
Steep waves, cold spray, and hazardous open water. Avoid small craft voyages. Always check official National Weather Service lake wind advisories.
Mostly clear. Low around 59, with temperatures rising to around 62 overnight. Southeast wind 0 to 3 mph.
Partly sunny, with a high near 77. North northwest wind 3 to 9 mph.
Mostly cloudy, with a low around 52. North northwest wind 9 to 13 mph, with gusts as high as 21 mph.
A chance of rain showers after 1pm. Mostly cloudy, with a high near 68. North wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 7pm. Mostly cloudy, with a low around 46. North northwest wind around 12 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Partly sunny, with a high near 60. North northwest wind around 9 mph.
Partly cloudy, with a low around 41. North northwest wind 3 to 7 mph.
Mostly sunny, with a high near 61. North northeast wind 2 to 8 mph.
A chance of rain showers after 7pm. Partly cloudy, with a low around 43. East wind around 6 mph. Chance of precipitation is 30%.
A chance of rain showers. Partly sunny, with a high near 60. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a low around 41. Chance of precipitation is 40%.
A slight chance of rain showers before 7am. Partly sunny, with a high near 56. Chance of precipitation is 20%.
Partly cloudy, with a low around 35.
Mostly sunny, with a high near 58.
Big Stone Lake currently reports 69°F with wind velocity near 8 mph from the E. Atmospheric forecasts and 24-hour hour-by-hour wind timelines are updated hourly from the National Weather Service gridpoint matching the lake's coordinates.
At Big Stone Lake and surrounding mountain valleys, diurnal heating of the surrounding terrain causes strong thermal pressure differentials known locally as afternoon breezes (such as the Washoe Zephyr at Lake Tahoe). Wind speeds typically peak between 1:00 PM and 5:00 PM before calming near sunset.
For stand-up paddleboarding (SUP), canoeing, and light kayaks, winds under 7 mph (light breeze) offer the safest, glassiest surface conditions. Between 8–14 mph, small wavelets develop, suitable for sailboats and powerboats. Winds exceeding 15 mph create steep whitecaps and rapid drift; winds over 21 mph warrant small craft warnings.
All weather and wind telemetry is fetched directly from the National Weather Service (NOAA - WFO ABR) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Big Stone Lake without artificial smoothing or third-party estimates.
Yes. Live hydrological sensor readings, 30-day elevation histories, full-pool benchmarks, and USGS station provenance are available on our dedicated Big Stone Lake Water Level & Temperature page.
View Big Stone Lake Water Level & Temperature →